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Weekend Worrier
 
Join Date: May 2011
Posts: 2,452
Okay- so I am going to replace my main tunnel fuel lines tomorrow. Any suggestions?

Yup. You heard me. Main fuel tunnel lines. Whoopee. Len made me a set of awesome replacements and it's time for them to go in. So here's my situation:
The good:
1.Car happily in the air
2.Front transmission mount off.
3.Tank drained/fuel pump out.

The bad:
1.Engine/trans in car.
2.Steering rack in car

The ugly
1:I live in the woods. It's thursday. I have no one to help.

Questions:
1.Do I need to pull the drivers seat and a/c console to fully access the tunnel?
2.Are there any circlips in the tunnel fixating the polyamide lines I need to be aware of?

Goals:
1.I want to try something different. Since I'm alone, instead of tying a string to the old line, pulling it through, and then using that same string to pull the new line back, I am going to section the female threaded nut on the old rubber line, and use it to attach the old polyamide line directly to the new polyamide line (at the trans side) and pull it all through to the front in one fell swoop.

Ideas? thoughts? suggestions?

for your adult entertainment: pure fuel line porn:


Also.. check this out... I had a full gas tank, and no place to put the gas, so being all "cool" i decided to short my fuel pump relay, attached len's lines to my current lines before the fuel accumulator, and hooked my car directly up to my volvo.

worked like a charm... but still took.. GET THIS 15 minutes for the fuel pump to empty the tank

So anyway... please comment and tell me this is an easy 10 minute job....because i'm F@#'n dreading this!!!!!!
.. i know i know its not a 10 minute job.... whaaaaaaaahhhhh!!!!!!
Thanks
(scraped hands/ knuckles/ cussing/) Ron

Last edited by LEAKYSEALS951; 01-15-2014 at 06:22 PM..
Old 01-15-2014, 05:05 PM
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Subscribed! My lines ship tomorrow .

My engine and Trans are out though.
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Old 01-15-2014, 05:39 PM
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Quote:
Originally Posted by LEAKYSEALS951 View Post
Yup. You heard me. Main fuel tunnel lines. Whoopee. Len made me a set of awesome replacements and it's time for them to go in. So here's my situation:
The good:
1.Car happily in the air
2.Front transmission mount off.
3.Tank drained/fuel pump out.

The bad:
1.Engine/trans in car.
2.Steering rack in car

The ugly
1:I live in the woods. It's thursday. I have no one to help.

Questions:
1.Do I need to pull the drivers seat and a/c console to fully access the tunnel?
2.Are there any circlips in the tunnel fixating the polyamide lines I need to be aware of?

Goals:
1.I want to try something different. Since I'm alone, instead of tying a string to the old line, pulling it through, and then using that same string to pull the new line back, I am going to section the female threaded nut on the old rubber line, and use it to attach the old polyamide line directly to the new polyamide line (at the trans side) and pull it all through to the front in one fell swoop.

Ideas? thoughts? suggestions?

for your adult entertainment: pure fuel line porn:


Also.. check this out... I had a full gas tank, and no place to put the gas, so being all "cool" i decided to short my fuel pump relay, attached len's lines to my current lines before the fuel accumulator, and hooked my car directly up to my volvo.

worked like a charm... but still took.. GET THIS 15 minutes for the fuel pump to empty the tank

So anyway... please comment and tell me this is an easy 10 minute job....because i'm F@#'n dreading this!!!!!!
.. i know i know its not a 10 minute job.... whaaaaaaaahhhhh!!!!!!
Thanks
(scraped hands/ knuckles/ cussing/) Ron
This is a ten-minute job.






















No it isn't. Sorry. This is going to take some hours to do, and it won't be fun or easy. But the reward is pretty good - you get minty-fresh fuel lines and you get to not have your car burn to the ground at an inopportune time.
Old 01-15-2014, 06:50 PM
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Quote:
Originally Posted by SilberUrS6 View Post
This is a ten-minute job.
i was gonna write 'bulls@#$~!!!!"
(kindof got my hopes up... maybe a little)
but then I scrolled down...

Quote:
Originally Posted by SilberUrS6 View Post

No it isn't. Sorry. This is going to take some hours to do, and it won't be fun or easy. But the reward is pretty good - you get minty-fresh fuel' lines and you get to not have your car burn to the ground at an inopportune time.
Man you burst my bubble!
Keep an eye on this thread... My wife has some pictures she would like to share regarding " your car burn to the ground at an inopportune time"
She's out of town, but her "smart phone" has the goods!

Later,
r
Old 01-15-2014, 06:57 PM
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It took me two (2) weeks to get this job done, personally.

Take your time, and ensure the car is stable on the jack stands.

When I did my car, this past year, I did in fact remove the steering rack which gave me more leverage when removing the lines going into the tunnel.
There are grommets on both ends of the car, front and back.

Removing the driver's seat is a good idea! That way you have a lot of room when cursing ($$#%!!^%%) at the tunnel. I say that tongue and cheek, because I really did CURSE at the tunnel. LOL

If the engine and transmission are out of the car, it makes the job so much easier, but it isn't necessary IMHO. I placed my car up as high as it would go on 6-ton jack stands and removed the wheels/tires and placed them underneath so if the jack stands failed/slipped my body would have time to GET OUT FROM under the chassis.

Hope this helps, and certainly "Good Luck" with your project, because it is a PROJECT.
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Old 01-15-2014, 07:12 PM
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I had the local wrench here in Denver (Eisenbud) do this the last time he had the car for a while. He had to drop the engine and tranny to fix a camshaft, so took advantage of that to fix a persistant gas smell that affected the inside of the car. I lived with that stink for years because it was only obvious when the car sat with closed windows. Now it only smells like an old Porsche.

Good luck with doing it with the engine and tranny still on the car.
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Old 01-15-2014, 07:21 PM
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Hello class! Why do WE replace our fuel lines?!??!!?!?!?


whoops!!!!!!!!!!!!!

R
Old 01-15-2014, 07:21 PM
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I was literally vomitting in the bushes thinking....THE FUCHS!!!!!!!
Old 01-15-2014, 07:23 PM
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p.s. - talk about "The right stance" for a 951!!! i worked hard for that!!!!
ugh the agony!!!
Old 01-15-2014, 07:25 PM
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but hey,,, it got me back to air cooled!
Old 01-15-2014, 07:29 PM
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That is just terrible. I am SO sorry.
Old 01-15-2014, 07:30 PM
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There are some photos on the second page on a thread I started on this topic that show the fuel line clips near the rear tunnel access cover. I haven't actually pulled these through yet so I'm not sure what clips there might be towards the front, but I'll finally be doing this soon and document what I find.

Should I replace theses brake and fuel lines?
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Old 01-15-2014, 07:31 PM
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I remember your post about this on the 944 side of things.
What a disaster, and a shame to have happen, especially since the 944 fuel rails fail due to cracking or because of vibration.

I am with you about the "vomiting in the bushes" part. I would have to be put in an asylum with lots of medication, as well as a straight jacket.

I don't envy you the PTSD when looking at these pictures either.

Sorry for your loss.
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1983 911SC
1987 944S
1987 944 Manual (Donated to the Nat. Kidney Foundation)
1987 944 Automatic (Recently sold to another Pelican)
Old 01-15-2014, 07:32 PM
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you, frankc are awesome! thanks!
Old 01-15-2014, 07:33 PM
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The weird thing about this is that this was at the end of my street. I was driving home and flames literally came through the glove compartment. I was about 1.2 mile from the house. I thought, ****. If I stopped, I was screwed, but if I could get to my water hose... maybe... so I FLOORED it... took it up to 70 or so...but then the fire burnt through the electricals, so the engine went out... "no problem " I thought... I can coast home (down a steep hill), but then the fire burnt through the brakes. No engine. No brakes. Flames through the glove box, over the window. Smoke everywhere, At about 50 mph, could only open door (pulling in more smoke) and pull pathetic ass e-brake (no real effect...) The hose wasn't gonna happen. I aimed it (with a full tank of gas) for the largest clearing available.....

The end

the rear view mirror fused itself into the asphalt it was so hot....
But every time we go in this direction... the sc slows.... and pays RESPECT!

Last edited by LEAKYSEALS951; 01-16-2014 at 12:41 AM..
Old 01-15-2014, 07:57 PM
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Thanks too Tibetin- the seat comes out tomorrow!!!
Old 01-15-2014, 08:02 PM
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I did this two weeks ago. It honestly took about two hours start to finish. The hardest part was getting the rubber bushings out. I pulled from the front with some bailing twine tied to the end of the line. Everything was in the car, rack, engine, etc. I have a lift so I didnt have to do it on my back but, it was seriously easy, I over thought it. I am super glad I changed the lines. They were old and brittle and split open as I removed them. I changed them because I had a slight smell of gas in the car if it sat for a while. Good luck and don't over think it.
Old 01-15-2014, 08:35 PM
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fuel line replacement

Pull the old lines out from the front. tie strong nylon string to both ends at the tranny. Use the strings to pull the new lines from the front to the rear. this is important because the fuel lines run up the side of the tunnel in some interior breces welded inside the tunnel so they do not get damaged by moving parts in the tunnel. (shifter, handbrake, throttle) note which hole the high pressure line and the low pressure return lines are in. My lines crossed sides in the tunnel and came out on the opposite at the rear. remove seats, rear tunnel cover and hand brake...maybe shifter will help too. PM me if you need additional info.

Rahl
Old 01-15-2014, 09:15 PM
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remove seat
remove console
push bushings out with screw driver from in side
use silicon lube on new bushings
take your time under the tranny support when undoing lines.
fuel will drain from them
when pulling over steering rack, if it gets hard, pull harder
no circlips in my 87
verify fuel lines in front of tunnel clear the clutch linkage - move linkage and verify
2 days maybe.
if you get tired or PO'd, stop
do it right all of the way
good luck
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Old 01-15-2014, 09:32 PM
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A minor tip for working with gas. This is helpful if you face any situation that requires the loosening of any fuel lines while you are lower than the line. The sort of position which gas might normally run down your arm, stomach and other places while laying on the ground. Just tie a rag around your wrist and it will help keep the gas/fluid from continuing down where you don't want it.
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Old 01-15-2014, 11:18 PM
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